白(bai)蘿(luo)卜(bu)通(tong)過(guo)挖(wa)心(xin)措(cuo)施(shi),能(neng)抑(yi)製(zhi)過(guo)早(zao)進(jin)入(ru)生(sheng)殖(zhi)生(sheng)長(chang)階(jie)段(duan),延(yan)長(chang)營(ying)養(yang)生(sheng)長(chang)期(qi)。挖(wa)心(xin)後(hou)能(neng)使(shi)供(gong)應(ying)生(sheng)長(chang)點(dian)的(de)營(ying)養(yang)轉(zhuan)移(yi)到(dao)肉(rou)質(zhi)根(gen)的(de)膨(peng)大(da)生(sheng)長(chang)上(shang),大(da)大(da)提(ti)高(gao)白(bai)蘿(luo)卜(bu)產(chan)量(liang)。近(jin)年(nian)來(lai),我(wo)地(di)城(cheng)郊(jiao)菜(cai)農(nong)推(tui)廣(guang)了(le)這(zhe)一(yi)新(xin)法(fa)。據試驗,挖了生長點的比未挖生長點的白蘿卜,每畝提高產量2125千克,並使蘿卜肥大,質地清脆,味甜,保鮮期近3個月。
具體做法是:在白蘿卜正常收獲期前40-50天,即白蘿卜長到0.25-0.5千(qian)克(ke)重(zhong)時(shi)即(ji)可(ke)挖(wa)去(qu)生(sheng)長(chang)點(dian)。挖(wa)生(sheng)長(chang)點(dian)應(ying)選(xuan)擇(ze)晴(qing)天(tian)進(jin)行(xing),用(yong)小(xiao)刀(dao)尖(jian)插(cha)入(ru)蘿(luo)卜(bu)心(xin)葉(ye)中(zhong)央(yang),將(jiang)生(sheng)長(chang)點(dian)挖(wa)出(chu)來(lai),如(ru)挖(wa)出(chu)來(lai)的(de)心(xin)葉(ye)不(bu)散(san)就(jiu)證(zheng)明(ming)已(yi)挖(wa)到(dao)了(le)生(sheng)長(chang)點(dian)。挖(wa)後(hou)5-7天,待傷口愈合後就要追肥,每畝追糞水2000-2500千克,每50千克糞水加尿素100-150克,淋施在蘿卜側麵,不能把糞水淋到蘿卜上,以免感染病菌而腐爛。以後每隔10天檢查一次。如生長點未挖去仍在生長,可進行第二次挖心。到收獲前1個月左右,即蘿卜長到0.75-1qiankeshi,jinxingdisancijianzha。ruweibashengchangdianwaganjinghuoyouceyachangchulai,zaijinxingyicibuwa。waxindezhuyaomudeshikongzhibuzaizengjiayepian,shiyingyangzhuanyidaoluoburouzhigendeshengchangshang。bingqienengshibailuobubaoxian3個ge月yue左zuo右you。如ru在zai春chun節jie前qian後hou出chu售shou,則ze不bu僅jin價jia格ge高gao,而er且qie能neng調tiao劑ji市shi場chang餘yu缺que。近jin年nian來lai,我wo地di城cheng郊jiao菜cai農nong推tui廣guang了le這zhe一yi新xin法fa。據ju試shi驗yan,挖wa了le生sheng長chang點dian的de比bi未wei挖wa生sheng長chang點dian的de白bai蘿luo卜bu,每mei畝mu提ti高gao產chan量liang2125千克,並使蘿卜肥大,質地清脆,味甜,保鮮期近3個月。
具體做法是:在白蘿卜正常收獲期前40-50天,即白蘿卜長到0.25-0.5千(qian)克(ke)重(zhong)時(shi)即(ji)可(ke)挖(wa)去(qu)生(sheng)長(chang)點(dian)。挖(wa)生(sheng)長(chang)點(dian)應(ying)選(xuan)擇(ze)晴(qing)天(tian)進(jin)行(xing),用(yong)小(xiao)刀(dao)尖(jian)插(cha)入(ru)蘿(luo)卜(bu)心(xin)葉(ye)中(zhong)央(yang),將(jiang)生(sheng)長(chang)點(dian)挖(wa)出(chu)來(lai),如(ru)挖(wa)出(chu)來(lai)的(de)心(xin)葉(ye)不(bu)散(san)就(jiu)證(zheng)明(ming)已(yi)挖(wa)到(dao)了(le)生(sheng)長(chang)點(dian)。挖(wa)後(hou)5-7天,待傷口愈合後就要追肥,每畝追糞水2000-2500千克,每50千克糞水加尿素100-150克,淋施在蘿卜側麵,不能把糞水淋到蘿卜上,以免感染病菌而腐爛。以後每隔10天檢查一次。如生長點未挖去仍在生長,可進行第二次挖心。到收獲前1個月左右,即蘿卜長到0.75-1qiankeshi,jinxingdisancijianzha。ruweibashengchangdianwaganjinghuoyouceyachangchulai,zaijinxingyicibuwa。waxindezhuyaomudeshikongzhibuzaizengjiayepian,shiyingyangzhuanyidaoluoburouzhigendeshengchangshang。bingqienengshibailuobubaoxian3個月左右。如在春節前後出售,則不僅價格高,而且能調劑市場餘缺。
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